UNIVERSAL DISPLAY CORP

Ticker: OLED CUSIP: 91347P105 Class: Common Stock

ARDSLEY ADVISORY PARTNERS LP's Holding History (CIK: 0000900529)

Note: Option positions (PUT/CALL) are excluded.

Q1 2016

Shares 27,000 Value ($000) $1,461 Avg Close $46.29 Range $38.30 - $52.96

Q4 2014

Shares 39,400 Value ($000) $1,093 Avg Close $26.98 Range $23.47 - $31.93

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2016	27,000	$1,461	$46.29	$38.30 - $52.96
Q4 2014	39,400	$1,093	$26.98	$23.47 - $31.93